Forrest Gump's trainers, a Jurassic Park T-Rex skull and a Batman batsuit are among several items of film memorabilia expected to fetch hundreds of thousands of pounds at auction.

A Stormtrooper's helmet, a "facehugger" from Alien and Russell Crowe's Gladiator armour are also among the pieces being sold by The Prop Store, which has offices in London and Los Angeles and sells film and TV memorabilia.

Image: Prop store employees adjust the Batman batsuit, worn by Michael Keaton in the 1989 film Batman

Image: A prop store employee adjusts a screen matched Tantive IV Stormtrooper helmet from 1977 film Star Wars: A New Hope

Image: A mounted 5-Foot Tyrannosaurus Rex skull from the 2018 film Jurassic World: Fallen Kingdom

Image: The Holy hand grenade of Antioch, from the 1975 film Monty Python and the Holy Grail

Image: A special effects 'facehugger' from the 1979 film Alien

Image: The prototype cane for Richard Attenborough's character John Hammond in the 1993 film Jurassic Park

Image: Tony Stark's desert costume worn by Robert Downey Jr in the 2008 film Iron Man

:: Listen to Backstage on Apple Podcasts, Google Podcasts, Spotify, Spreaker