I have managed to create a forcefield, which is a sphere (actor), where you can enter it. But when I enter it I get a weird view. And my game is third person. Can someone help please?
Looks alright to me 
Has the sphere got collision on the camera trace channel? If so untick it. Guess the camera is moving inside the collision bounds
@ thank you so much! I was also wondering if you knew how to get my character to play an animation when she summons the forcefield.
Play an animation montage for a one off animation or stick the animation in a state machine. Depends on how you want it to work really.
Have a look at the animation montage document its easy to setup, take a few minutes at most
@ hi, i unticked collision on the camera trace channel, but when my character looks downwards, i can see beneath the ground. Do you have a solution to this?
You need to set this flag for the Sphere Object not the Camera. Under collision settings for your sphere mesh, change it from Default , to custom and under the Camera line, set its collision to block.