There is an after credits scene. It's not worth staying for (though it is amusing). It does give away a few things that Disnerds who are into the whole IP sharing are interested in.
The movie itself was amusing...not worth ticket price, imho...matinee it if you fell you must see it in the theater.
The comedy is fun at first, but gets old quickly. Sarcasm isn't funny when it's predictable as hell. And, the last thing that a movie with a character like Deadpool should be is...predictable.
The acting and effects are mediocre. One particular character that is all CGI was a surprise to me (I didn't look into the movie at all before going into it), and the CGI for him was so bad it took me out of the movie every time he was on the screen.
The plot is about as deep as either of the Punisher movies...which is ok...if the character had been better.
The actor chosen to play Deadpool is wrong wrong wrong wrong. I'm sorry, Ryan Reynolds...He's great in small bits, but 2 hours of him, and he wears out his welcome. He's not crazy enough, or in character enough, to be Deadpool with the mask on, and he's not sick enough to be Deadpool with the mask off. Again, fine for a youtube short, but sucks when he's given more screen time than that.
The action and fight scenes, on average, are boring (after the first 20 minutes or so which are great).
There are lots of Easter eggs and references to the larger Marvel/Disney universe, including the final scene, but nothing that means anything beyond...oh, that's sortof neat.
There are a few 4th wall jokes that are hilarious, a few quips that are funny, but overall, most of the banter falls flat. They tried so hard to make Deadpool a sarcastic person (which he is) that you ended up not caring...and when they did finally TRY and give the story some depth, it was too obvious and silly.
In addition, without getting too far into spoiler territory, they missed a major chance to create depth to the insane Deadpool character by making more like a sarcastic teenager. This...cheapened the character...and flattened him down to basically a parody of himself. And, to me, that isn't what Deadpool is about, that's what Deadpool is to a 3rd rate hollywood writer who has been called in to finish up a script in time for filming and picked up a few online memes and read a comic at most.
I wish I could chalk that up to artistic decision, but I think it was more that they ran out of time, and the studio made them push it out. The opening 20-30 minutes were fantastic...and from then on, well, you may as well just leave after that. There isn't much else to see. And, there isn't much in that first 20-30 minutes that you can't get out of the pre-release videos on youtube.
To be fair, there were places where you could tell there was a lot of promise...for example, one particular scene towards the end with animation added in was fantastic...and I wish there had been more random scenes like that...and, oddly, the opening credits were hilarious. But, while the whole movie should have been a trip along those lines, it isn't...and scenes like that should be common, but, they aren't.
It's...an ok movie. It certainly isn't the loving treatment/surprise that Guardians was. This felt rushed out, and to be a parody of previous Marvel movies, simply for the fact that it could be. And, while that could be a GREAT angle, this movie didn't follow through.
The scenes that got it the R rating felt gratuitous and forced. They did nothing for the plot, and felt like they were tossed in just so "it could get a R rating"...probably because the fans "wanted it".
I enjoyed it, but it isn't anything close to what Marvel has put out in the past as far as a sleeper IP...I'm quite disappointed. Frankly, Deadpool would have done better with the Daredevil treatment, or something like that...not what he got.
I didn't care about the story and the characters were one dimensional. I didn't care about the action, the effects and stunts were fairly poor to downright distracting, and the comedy (which should have carried the show), was lacking.
Worth seeing, but not full price. Or, even better, give it two months for it to go to Netflix.