Steve Martin and John Candy starred in the holiday movie classic Planes, Trains and Automobiles, writer/director John Hughes’s first big foray away from writing about teenage angst. Martin played Neal Page, a marketing executive desperate to get back home to Chicago to see his wife and kids for Thanksgiving, who along the way is thoroughly aggravated by shower curtain ring salesman Del Griffith (Candy) and the many, many, many mishaps that befall the two throughout their travels. Here are some facts about the film that are not pillows.

1. Planes, Trains and Automobiles was inspired by John Hughes’s own hellish trip trying to get from New York City To Chicago.

Before he became a screenwriter, Hughes used to work as a copywriter for the Leo Burnett advertising agency in Chicago. One day he had an 11 a.m. presentation scheduled in New York City on a Wednesday, and planned to return home on a 5 p.m. flight. Winter winds forced all flights to Chicago to be canceled that night, so he stayed in a hotel. A snowstorm in Chicago the next day continued the delays. The plane he eventually got on ended up being diverted to Denver. Then Phoenix. Hughes didn’t make it back until Monday. Experiencing such a hellish trip might explain how Hughes managed to write the first 60 pages of Planes, Trains and Automobiles in just six hours.

2. Howard Deutch was originally supposed to direct Planes, Trains and Automobiles.

Deutch directed Pretty in Pink and Some Kind of Wonderful for Hughes. Hughes decided to direct himself after Steve Martin signed on. Deutch got to direct The Great Outdoors instead.

3. Steve Martin thought the script for Planes, Trains and Automobiles was too long.

The comedian, who had written his own screenplays, thought the 145-page length of the script was a lot for a comedy. When Martin asked Hughes where he thought they might cut scenes, Hughes was confused by the question. Martin later claimed that the first cut of Planes, Trains and Automobiles was four and a half hours long.

4. John Hughes acted out the entire movie to a publicist hoping to work on Planes, Trains and Automobiles.

Reid Rosefelt went in to meet Hughes for the unit publicist position. Rosefelt recalled in his blog that he found it strange, but admirable, that Hughes did not allow Rosefelt to see the script to the movie he would potentially work on and promote beforehand. After the two grew more comfortable with one another at their meeting, Rosefelt asked what the movie was about—he only knew Steve Martin and John Candy were starring and it was called Planes, Trains and Automobiles. Hughes then performed the entire movie for him. Rosefelt didn’t get the job.

5. John Candy arrived on set with exercise equipment.

On the first day of shooting, the crew brought in treadmills, weights, and other exercise equipment for Candy to use in his hotel suite. Martin said Candy didn’t use any of it.

6. The entirety of Planes, Trains and Automobiles was meant to be shot in Chicago, but there wasn’t enough snow.

Some exterior scenes were filmed in Buffalo, New York. Martin said that the cast and crew pretty much lived the plot of the movie. “As we would shoot, we were hopping planes, trains, and automobiles, trying to find snow.”

7. The constant delays on production on Planes, Trains and Automobiles were very beneficial to one actor.

In John Hughes: A Life in Film, Kirk Honeycutt wrote that one actor, who played a truck driver, was only supposed to have one line and work for one day. Hughes chose to keep him on standby. The actor ended up working enough days while the crew waited for the snow to come that he was able to make a down payment on a house. It’s very possible this was Troy Evans, who was uncredited, as the shy truck driver in the movie. He went on to appear, credited, on ER for the show’s final five seasons as Frank Martin.

8. Edie Mcclurg’s Planes, Trains and Automobiles improvisations impressed John Hughes.

McClurg, probably best known as Grace, Principal Rooney’s secretary in Ferris Bueller’s Day Off, played the St. Louis car rental employee upon whom Neal dropped 18 F-bombs. For the first few takes, McClurg simply raised her finger and had a standard phone conversation with a customer. Then Hughes told her to improvise talking on the phone about Thanksgiving. She then came up with the stuff about needing roasted marshmallows and taking care of the crescent rolls because she can’t cook based on her own life. When she finished, Hughes asked her how she came up with those details so quickly. When McClurg explained she just got it from her own life just like he does with his scripts, he said, “Oh yeah!” She claims people to this day ask her to tell them they’re f*cked.

9. In one scene, Susan Page is watching She’s Having A Baby—another John Hughes movie.

In the scene that goes back and forth between Neal trying to sleep next to Del clearing his sinuses and Neal’s wife (Laila Robins) watching TV alone in their bed, she is somehow watching She’s Having a Baby, which wouldn’t be released in theaters until February of the following year. Kevin Bacon stars in that movie, and made a cameo in Planes as the guy who out-hustles Neal in getting a cab. Some people believe Bacon—who was officially listed in the credits as “Taxi Racer”—was playing his She’s Having a Baby character, Jake, in that scene.

10. A scene in a strip club was cut.

After their car blew up, Neal and Del went inside a strip club to use a phone, where Del got distracted by the dancers. Actress Debra Lamb didn’t know that her scene was cut until she went to a screening.

11. Jeri Ryan was cut from Planes, Trains and Automobiles, but her scene wasn’t.

It was the actress’s first role. She was one of the passengers on the bus ride and couldn’t help but laugh at Martin and Candy’s antics. They reshot the scenes without her.

12. Elton John wrote a song for Planes, Trains and Automobiles.

Carlo Allegri, Getty Images

Elton John and lyricist Gary Osborne were almost finished writing the theme song when Paramount insisted on ownership of the recording master, which John’s record company would not allow. The song has never been released.

13. In the original ending, Del followed Neal all the way home.

Hughes decided during the editing process that instead, John Candy’s character would be “a noble person” and finally take the hint from Martin’s character, and let Neal return home alone, before Neal has a change of heart and finds Del again.

14. In the scene where Neal thinks about Del on the train, Steve Martin didn’t know the camera was on.

In order to get the new ending he wanted, Hughes and editor Paul Hirsch went back to look for footage they previously didn’t think would be used. Hughes had kept the cameras rolling in between takes on the Chicago train, without his lead’s knowledge, while Martin was thinking about his next lines. Hughes thought Martin had a “beautiful expression” on his face in that unguarded moment.