Fixing lens barrel distortion

[Peter C.]

Is there an easy way to fix lens barrel distortion in FCPX or a free software?

I'm shooting theater performances on my A7IV with a Tamron 20-40mm lens. Because the shot has straight lines I notice it when in other situation I had no idea there was any distortion. I'll include a still. In the background curtain on the right side looks weird, curling down. I made sure the camera was centered and level but it looks off.

I know in Photoshop you can apply a lens correction but do they have a feature like that in video editing software?

 

[NorBro]

There's a 'fisheye' effect in the effects browser you can play around, as well as maybe with the scale parameters a tiny bit. (Plus tons of 3rd party plugins.)

 

[Peter C.]

There's a 'fisheye' effect in the effects browser you can play around, as well as maybe with the scale parameters a tiny bit. (Plus tons of 3rd party plugins.)

Thanks that worked sufficiently for my purposes. (Fisheye filter + transform distort). See attached