Calgary International Film Festival
It only makes sense that a billboard advertising a film festival would utilize the 3D technique. Advertisers know that stirring emotions is key for good advertising, and it’s particularly relevant when advertising a film festival. The Calgary International Film Festival posted different versions of this sign, where people are shown sobbing or crying, using a 3D effect of tears.

With the slogan, “only the best films make it” (demonstrated by the emotion-filled image), the Calgary Film Festival announces loud and clear they will settle for nothing but the absolute best – and the best films deserve the best advertisements. If this doesn’t make people interested in the festival, I don’t know what would.