Harry Potter Apparition Effect!
Hi! So basically I've been trying to create a Harry Potter Apparition effect, similar to the one in the films, but I'm a bit stuck! I've looked at Film Riot's tutorial, yes it's for AE, but HitFilm is better and you can still do it! So, I have followed that until it comes to reshaping the body into the arc shape and animating it? Any help or suggestions will be greatly appreciated! 
Here's the tutorial:

Here's the tutorial:

Comments
I think you can try to get a similar result with the Bezier Warp or the Polar Warp effect.
In the 'Twirl' filter controls: turn up the angle to aprox 260 degrees. After that, keyframe the radius in the filter from 1 to like 500-1000. Note that the keyframes must be really close to eachother because the effect itself is really fast in the movies;)
You can also use the fisheye-warp effect by setting the 'Wrap X' and 'Wrap Y' to no.
Hope this helps for you:)
Offtopic: I thought Hitfilm was going to give Filmriot a copy for a review? Never saw it I think but you really should because Filmriot has a large audiance with young/beginning filmmakers:)
Filmriot once mentioned HitFilm in one of their videos, but never showed anything with it. That would definitely be awesome, if Filmriot picked it up... Would be much of a boost!
@Robin - Yes, I definitely agree with you there and think that a puppet tool is something that the HitFilm Team could consider in the future?
@pixelizedFX - Thanks a lot! That really helped. I've done the twirl effect and have followed your instructions, however, I'm not too sure how to end it. Generally, the character just seems to get smaller...but I'm not too sure how to do it! Haha, I've only just started with HitFilm, so I'm not too experienced!
@AndrewH - Wow! That's really good actually
Thanks everyone for the help!
And don't forget to add motion blur:)(really settles the effect)