user9242: 
Is there a specific name for this technique? so I can search for tutorials about it.

user3908: The technique is classically called rotoscoping after the original process done using projected film. If you google rotoscoping in after effects you should find lots of samples and tutorials.

9242: <p><img src="https://i.stack.imgur.com/tHsD6.png" alt="animation on film"></p>

<p>Is there a specific name for this technique? so I can search for tutorials about it.</p>
 3908: <p>The technique is classically called <a href="https://en.wikipedia.org/wiki/Rotoscoping" rel="nofollow">rotoscoping</a> after the original process done using projected film. If you google <strong><em>rotoscoping in after effects</em></strong> you should find lots of samples and tutorials.</p>
