Chris Pratt, Vin Diesel and Paul Rudd have rocked 2015's summer box office. But just because they're starring in this year's biggest blockbusters doesn't guarantee that they'll stay on top in Hollywood. Just ask some of the stars of '80s and '90s summer blockbusters -- although some have been lucky and remain huge draws. Let's start with Tom Hanks. He made a "Big" impression in the '80s, but it was 1994's "Forrest Gump" that secured his place as one of the most sought-after actors in Hollywood. The flick also gave rise to one of the most memorable movie lines of all time: "Life is like a box of chocolates: You never know what you're gonna get." Click through to see what he's up to now!