Strictly speaking, E.T. has an even bigger name attached to it. Pictured here in 1982 with his then-wife Melissa Mathison and Spielberg, Harrison Ford filmed a cameo as Elliott's school principal. But the scene was cut, leaving the Hollywood heavyweight as a behind-the-scenes footnote.

Ford was already famous by 1982 thanks to Star Wars and Raiders of the Lost Ark. He went on to become one of Hollywood's most bankable stars, returning to both the Han Solo and Indiana Jones roles while also headlining hits including The Fugitive and Air Force One.

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