I've loved Tom Hardy since Star Trek Nemesis (20yrs ago!) I'm a huge fan & his performance was great, it's just the plot is so unbelievable. It's really a 2.5 stars, but I do love Hardy!
Spoilers ahead, so sorry!
First off being a woman in my 40's, I'm also a Registered Nurse, you would never let a high risk pregnancy & labor/delivery "marinate" that long - anyone over 40 is a high risk, she went into labor 2 entire months early, that is having severe pain in her chest, with the umbilical cord around the baby's neck, is a bona fide EMERGENCY! They would never fart around for nearly 2 hrs making ridiculous phone calls & worried that the Mom seemed upset - of course she is, but their actual lives matter more!!! I could barely stand listening to the hospital calls & Bethan. Generally there is already some kind of plan in place so the Mom is well informed about everything that could possibly go wrong during the pregnancy! This makes me question the research of the writer/director & NHS in the UK! The NHS couldn't possibly be that incompetent, there would be no children in England!
Locke apparently also has no freaking clue how serious pregnancy & labor & delivery is for a high risk pregnancy (& also for a first time Mom who is 43). Bethan also sounds too dimwitted to even be employed, or sexually attractive! (I wonder how much my husband would appreciate me having drunken pity sex with a pathetic church mouse, it's a laughable reason to cheat!) While he eventually did the right thing, it took him 6-7months to do it, so losing everything is kind of expected at this stage in his life. I also did not understand why Donal was drunk at work! Is that normal there? The work problems also seemed overly dramatized & petty & Locke could've sorted them out himself! I've never had a job where the "boss" didn't have a least one, but usually more trusted people, working under them that could competently fill in for them in an emergency. Even something "historic"! His talking to his loser father was strange too, does anybody actually do that?? Just knowing you're better than your parent's is good enough, it doesn't redeem him in my eyes anyway just being at the birth - it's the lifetime that truly matters. And expected to drop everything for an early, emergency c section birth! Any reasonable woman, especially a one night stand, would probably understand the guy cares, but he has a job he absolutely needs, so he can care for ($$$) their little miracle (& it is an impossible miracle). She's going to be exhausted anyway, there's no reason he couldn't have come in the morning after "the pour".
The movie was very slick & Tom Hardy is beautiful & believable to watch, but sadly it is not as great as the hype. Oh & how can he see driving on a highway at night reading his paperwork? Extremely unsafe too!