Worst movie from favorite actor?

My partner and I are in the middle of a pretty ambitious project. We're watching all of Tom Hanks' movies, in chronological order. It's taken us almost 2 years, and in that time we've seen some highs ("Saving Private Ryan") and some lows ("Bachelor Party").

But the most recent ones we watched were a true 1-2 punch of crap. "Polar Express", immediately followed by "The DaVinci Code."

Both just **punishingly** awful. Made two hours feel like 9.

Though I'll never stop loving Tom Hanks, those movies were questionable choices.

Who's an actor you like, who made an absolutely terrible movie?