Last Vegas actually isn't that funny. The film is old people partying, drinking, gambling and picking up hot girls in Vegas! How does that not sound like fun? But more importantly, how did that fail to be funny? There were a couple of decent jokes in the film that made me chuckle, but I'd seen them all in the trailer so they really weren't as funny. There were various moments in the film that were fun to watch, but I was never really laughing out loud at any of the jokes. All the jokes are either not funny or occasionally bring a smile to me face. It's nothing more than that.
Every bit of the film is predictable. I'm not just talking about how the storyline turns out and what happens to all the characters, no all the jokes are predictable. "Oh hey I bet she's actually not a woman!" yep I was right there. "Hey I bet I know who appears in this scene!" Yep another thing I saw coming. Every moment in the film is predictable and that's not even an exaggeration. Some of the jokes can still bring a smile, but you could see them coming a mile away. I literally picked the ending twenty minutes in the film. Maybe even less. The film's just too cliché and predictable.
The film feels way too long. This is one of the few movies that I actually went into and when the ads started I forgot how long it went for and what time it ended. When the time the film ended I checked my watch and was surprised to see that it had only been an hour and forty minutes. The film feels like it went way past the two hour mark and I was getting restless in my seat. My jaw dropped when I saw how long it had actually been going for.
To sum up Last Vegas is a cliché, predictable mess that feels much longer than an hour and forty minutes and has a few jokes that brought a smile to my face, but even less that made me laugh a little.