Supergirl's writing was a train wreck. So many baffling things I have to assume studio meddling. The movie otherwise was fine. Actress, fine. Direction, production, special effects, fine. But Supergirl came off hella awkward preaching about not revenge killing. Not because she accidentally killed someone in a rage and felt emptiness or regret. But that she'd lost her home and family to natural causes. Same thing right? And at the end, after all the preaching she gets her hypocritical kill on. No straightforward or intelligible arc as a character. For anyone. Baffling.
Have a 10 minute opening scene with her battling along side Clark. Accidentally going to far not realizing her strength. Then go off soul searching for the rest of the film. Biggest issue fixed. It would still need other tweaks. But then the main character would have a solid arc at least.
Mamoa as lobo though...... No notes.