Can I make a painting for sale of a celebrity from a movie I paused and photographed the screen to obtain the image?

You've probably already infringed by taking the photograph. Creating another derivative work would be another infringement. Plus California has a...

Selling canvas wall art pictures online

You are not overthinking this, you are being careful. However, no one can tell from your description whether you would be allowed to do what you...

Can i make movie reviews with the clips from trailers?

It would be best to retain a lawyer and get a confidential opinion after careful review of all the facts. There's a big difference between...

Not patent -- those are for technology -- but copyright. Wikipedia says Tweety was created in 1941 so copyright would be expected to be in force. ...

Can you sell a high-end brand in your own physical clothing shop without the designers consent?

If it were only a question of selling authorized products, there isn't much in trademark or copyright law that would stop the re-selling of goods...

Is there a way to register two or more words so that the words are not evaluated individually, but seen only as one?

Kind of, but that's not really the way trademarks are analyzed. Every trademark is supposed to be evaluated on its own. A two word mark is a two...

I've written several graphic novels, I'm ready to produce my product, but I'm not sure how to protect my artwork and writings.

Those sound like two unrelated things. Copyright can protect graphic novels by perfecting, with registration, exclusive rights to reproduce and...

Can I make something from a name brand item and resell it?

If you're selling luggage made from the material that comprises T-shirts and you still display logos on the material you risk a trademark...

Is it illegal to use trademarked names in conjunction with fictitious institutions?

You describe the institutions as fictitious and describe selling shirts so it would appear you are displaying someone's word mark, not doing...

BRETTWISER trademark opposition?

You don't say who is opposing and I wouldn't guess. There is a beer company whose trademark is the German spelling of the Czech town Cesky...