Family pride! Kate Mara wears New York Giants pullover as she goes for romantic stroll with Jamie Bell 

Her great-grandfather founded the New York Giants.

And Kate Mara showed family pride as she wore one of the NFL team's pullovers as she went for a romantic stroll with Jamie Bell in Los Angeles on Wednesday.

Or perhaps she is more frugal than she appears, despite coming from a monied background, as she could no doubt get one of the franchise's garments free, or at a steep discount at the very least.

Playing ball: Kate Mara wore a New York Giants pullover on romantic stroll with Jamie Bell in Hollywood on Wednesday

This would seem unnecessary however, as she is a member of one of America's richest families, has a sizable estimated personal net worth of $10 million, and her relatives own both the Giants and the Pittsburgh Steelers.

Kate, most famous for her turn in the disastrous Fantastic Four, showcased her svelte figure in the jumper and a pair of comfortable looking jogging trousers.

Billy Elliot favourite Jamie, 30, meanwhile dabbled in the notoriously difficult hobo chic look in a white T-shirt, lounge bottoms and a woollen hat

The couple both co-starred in Fox's disastrous reboot of the Marvel comic last year, and have been inseparable since.

No doubt the more cosmically inclined would claim it is due to the fact they share the star sign Pisces, whose holders are supposedly compassionate and devoted, but also oversensitive, indecisive, self-pitying and lazy.

Dynamic duo: The Fantastic Four stars held hands as they enjoyed a sunshine stroll

Family pride: Kate's megarich relatives own both the Giants and the Pittsburgh Steelers

Their superhero picture amassed an embarrassing $25million in its opening weekend - barely a fifth of its $120million budget. 

But looked the furthest thing from their minds as they walked arm-in-arm together. 

It was certainly a more relaxed outing than when they ended up being caught up in the excitement when they attended the same restaurant where Kendall Jenner's birthday party was being held in Los Angeles last week

The dynamic duo looked rather taken aback as they headed out for the night after their jolly feast within earshot of the Kardashian klan at the trendy Catch LA eatery.

Looking a bit tartan special: She showcased her figure in this lovely dress last week

What a night: The pair attended the same restaurant at the same time Kendall Jenner's birthday party was being held in LA

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