

The Marvel universe is set to implode Friday, with a slew of crossover cameos and throwback references in The Incredible Hulk.

[Spoilers ahead]

Not only will Robert Downey Jr. reprise his role as billionaire Tony Stark with a lengthy cameo in the film, but further whetting the *Avengers *appetite is an appearance by Captain America.

And it's likely to be more substantial than the measly millisecond glimpse of a shield (barely) seen in Iron Man. In a recent interview with G4's Attack of the Show, Incredible Hulk director Louis Leterrier hinted at the superhero's cameo, saying:

"As a filmmaker and as a fan, I like to go see movies and watch them several times ... and every time I see it, discover little things in the background. Did you know that in Iron Man, Captain

America's shield can be found somewhere? Well in Hulk you might see

Captain America himself!"

And as an extra head nod to the franchise, Lou Ferrigno, who starred as the mean green machine in the '70s television show, voicesthe growlings and occasional "Hulk smash!" in the upcoming movie – a bit ironic, since Hulk rarely spoke in the televised series.

Nonetheless, it's this type of acknowledgment to the comic's lore that'll get Hulk fans into theaters to see the film, myself included, despite the foreboding reluctance of Ed Norton (who plays Dr. Bruce Banner) to promote the movie.

[via BadandtheUgly]

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