"Up in the Air" is a thoughtful drama about a man who seems to be in control of his life, but turns out to be a lonesome man who may have no trouble, but never felt love, or friendship.
George Clooney is great as Ryan Bringham, and also the whole script makes this movie great to watch for every fan of clever independent movies.
The movie has some emotional moments, but - judging through my time as a kid - most children will not see movies as sad as adults.
The movie is rated R, but only for language.
There are mild sexual references, but there are worse sexual references in PG-movies.
If you don't mind profanity, you can let younger teenagers and older children watch this. No violence is depicted (SPOILER: a suicide is a thematic element, but it is not shown, END OF SPOILER). We see a couple nude after implyingly having sex, but only from behind or under the blanket. A few mild comments are made, children will not get this.
Teens and up.