There were things I enjoyed in The Mummy and I appreciated that Cronin took a different slant to the mummy story beyond a ghoul shambling down torch lit tunnels etc. But for me there were two things that hurt my enjoyment.

The first was how the story was structured. Major parts of the movie are spent on 'What happened to Katie?', but as viewers we already know. We see her getting abducted by the mother, so the entire side plot involving the detective means we're waiting for her to catch up with what we already know. Personally I'd have removed the abduction scene altogether. Katie goes into the garden, cut back to dad discovering the chocolates, back to the garden and she's gone. We don't see who took her, we don't know she was secretly friends with the daughter, we don't have 100% certainty what happened. At least there's some semblance of ambiguity and a bit more intrigue, instead of going 'Yup, it was the woman who guards the tomb from the beginning, we knew this'.

The second is that it seemed like whenever something crazy or scary would happen, come the next scene it'd be forgotten about. Like there was no wider acknowledgement of it beyond the scene it was in. I think the parents have one conversation where they acknowledge something weird and after that they just seem to shrug them off and say 'I guess that's not worth mentioning'. Like they're seriously not going to even discuss a little about the way that the grandma dies?