If you have seen Samsung Galaxy S III boot animation it is most likely that you would fall in love for it, but sadly you don't own an S III . Not any more. Androidbootanimations.com serves up these and several other custom animations in three different screen resolutions.
You'll need a rooted Android phone and either a custom ROM that offers animation changes or a boot screen manager such as boot Animations for Android or Aniboot. Both of those apps come with several animations as well.
You can download the boot screen from the website mentioned above and enjoy the Galaxy SIII boot animation on any android device you want. There are several other boot screens developed by them available free to download.