Update: Uma’s boyfriend, Arpad Busson, has denied to Page Six that they are expecting a baby together. When told that Uma looked pregnant in recent photos, he said that it is because "she quit smoking."

Originally posted December 16th: Kill Bill actress Uma Thurman, 37, has been the subject of pregnancy rumors since she hosted the Nobel Concert in Norway, wearing a tight dress that appeared to reveal a baby bump. Uma, who has daughter Maya Ray, 9, and son Levon Roan, 5, with ex-husband Ethan Hawke, 37, has been dating Swiss financier Arpad Busson since July. Arpad has sons Arpad Flynn, 9, and Aurelius Cy, 4 ½, with model Elle MacPherson, 44.

Source: Digital Spy

Thanks to CBB reader Michelle.

What do you think – is that a baby bump or simply bad angle?