Elizabeth Olsen's relationship with Tom Hiddleston is ''getting more serious.''

The 26-year-old actress, who split from fiancé Boyd Holbrook in January after three years together, and the 34-year-old British star were spotted looking very cosy while strolling around Oxford on Tuesday (21.07.15) after first sparking rumours they were ''hooking up'' in May.

A source close to the couple said: ''They've been talking constantly. It's been good for the both of them, they really care for each other. Neither of them are looking to jump into a large commitment, but it's getting more serious.''

The duo also attended Bradley Cooper's West End production of 'The Elephant Man' in London last night (23.07.15).

Another source told UsMagazine.com: ''She went to meet up with Tom after doing Paris Fashion Week and wrapping on 'Captain America: Civil War'.

The pair recently completed shooting their upcoming drama 'I Saw the Light' and have both appeared in separate 'Avengers' films.

It was previously claimed Elizabeth wasn't interested in having a serious relationship with Tom so soon after her split from Boyd.

An insider recently said: ''They have been hooking up. It's casual [but they] text when they're apart.

''She wants to make a new life for herself. She's having fun.''

Tom was previously romantically linked to record producer Jane Arthy.