Rosamund Pike Photographed in Rare Outing with 11-Year-Old Son at NBA Game in London

Rosamund Pike enjoyed a mother-son night out in London over the weekend.

On Sunday, Jan. 18, the Gone Girl star stepped out to catch an NBA game at the O2 Arena in London, where she was accompanied by her 11-year-old son, Atom.

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Pike, 46, looked effortlessly chic during the outing on Sunday while she and her son sat court side to watch the Orlando Magic take on the and Memphis Grizzlies. The Oscar-nominated actress was dressed in an all-black ensemble made up of a fitted trench coat and straight-leg black pants.

She accessorized with a gray handbag and a pair of sunglasses, giving off maximum cool energy.

As for her son, Atom appeared to be sporting a blue zip-up jacket featuring small red polka dots and white stripes.

Atom is the younger of Pike’s two sons, both of whom she shares with longtime boyfriendRobie Uniacke. The Saltburn actress welcomed first-born son Solo, 14, in 2012, followed by Atom’s birth in 2014.

Uniacke, who Pike has been linked to for 15 years, also shares four children from previous relationships.

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After Sunday night’s game, Pike shared a recap from her night to her Instagram Stories on Sunday, Jan. 18, telling her followers she had an “epic time” at the game. The Memphis Grizzlies ended up taking home the win for the night, beating the Florida-based team 126 to 109.

“Thank you @nba for doing it all so well,” Pike added on Instagram.

Related: ‘Gone Girl’ Actress Rosamund Pike Commands Attention with Bold Fashion Choice