How can animation enhance the theme of a film (in animated films obviously)?

I don't understand as this is one of my questions for an assignment (although it refers to a particular film we have to choose to watch ourselves). How can animation enhance the theme of a film?|||Sometimes, you are able to accomplish more with animation than you can with live-action, owing to a slight bending of the reality|||Animation can give the creators of a film more control over how their themes are put across - they don't have to work within the confines of the real world and they choose expressions for their characters.|||Animation is not limited the way real life is. An animated character can do things a real actor cannot, therefore it can greatly enhance the message a director/screenwriter is trying to get across. In animation, it's also easier establishing "visual tone" (how the look/colors/environment of the movie affects your mood), which is sometimes important getting a theme across.|||"Who Framed Roger Rabbit" benefitted tremendously from the use of both human and cartoon characters....even the story line revolves around wiping out the "old" for the supposed improvements of the "new" (goodbye "Toontown" and the "Red-Car", and here come "freeways" and "mini-malls").....I'm pretty sure that animation enhanced the theme of this film by placing animated characters at the forefront of the conflict at hand, making you appeal to them as "real" and "tangible" characters with real consequences based on the development/plot of the story and how those developments effected these "real-life-oriented" (albeit) animated characters|||With animation every single little aspect can be controlled and manipulated. They can literally create things that cannot be done in actual movies... When the whole thing is in animation the unbelievable can seem more realistic than crap effects in a movie...