Continuity mistake: When Joy and Ward are talking in the office, she's gripping the mug on the side. In the next shot after Ward sits next to her, she's now holding the mug by the handle. It switches back to the side and then to the handle again.
During the fight with Zhou Cheng, Cheng does a forward flip and kicks Danny, making him stumble backwards. In the shot of Cheng lying on the ground, Danny is holding his stomach. In the shot immediately afterwards, he's holding his chest.