I've run into a few people recently that were planning to go to see a movie just because it had a certain actor in it, and I guess I'm a bit curious how much that normally affects most people's movie decisions! The type of story is generally the reason I choose to watch something, and I've found that, in most cases, being familiar with the actor doesn't really make me enjoy it any better. My biggest break from that general rule would be Buster Keaton and Harold Lloyd comedies, because I know the ones from their silent era will normally be in a style I enjoy!
Derek Jacobi is the only reason I find Gladiator remotely tolerable.
Mind you, I'd watch him reading the phone book. I just finished reading his autobiography,
As Luck Would Have It, and it made me nostalgic for my own theatre days (as a backstage worker, not acting). I would have loved to see him actually on stage, and not just on TV.
The main reason I saw the Harry Potter movies during a long weekend marathon on TV is because of Maggie Smith. She played my favorite Downton Abbey character, Dowager Countess Violet. So when I read that she was in Harry Potter, I decided to watch them.
I'll watch anything Brian Blessed is in. I've seen a variety of things John Hurt was in, and sometimes it seems like he really did morph into a thousand-year-old dragon in BBCMerlin.
There are actors where if I know they're in a movie it may pique my interest, but I tend to look at Rotten Tomatoes and/or Wikipedia to get a sense of what critics think of a film before I'll commit to seeing it, unless it's something I have a strong sense I want to see on principle.
I can't fathom basing my choices in movies on someone else's opinion. Especially when they're paid to have opinions. A good movie is one that entertains me or makes me think or have a strong emotional reaction. What other people think of it is irrelevant.
If a film has Denzel Washington or Tom Hanks, I would usually take the view it’s not going to suck, at the very least.
Have you seen Much Ado About Nothing? That's the only movie I've seen Denzel Washington in, and he said in an interview that the reason he did a Shakespeare movie is because he was curious to find out if he
could do a good job with it.
He's not up there with the classically trained Shakespearean actors, but he did a good job in this movie.